{"dataset":"MainBuyer UK price observations","market":"GB","market_name":"United Kingdom","methodology":"Each observation is stored only when MainBuyer has a timestamped checked retailer offer. Missing days are not interpolated or invented. Historical low, high and median figures use recorded in-stock observations only.","observations":[{"currency":"GBP","in_stock":true,"observed_at":"2026-09-17T12:29:14+00:00","price":"49.99","retailer":"Amazon UK","source_kind":"offer_check","source_url":"https://www.amazon.co.uk/dp/B0C9ML5YGK?maas=maas_adg_api_578224061333723220_static_12_201&ref_=aa_maas&tag=maas&aa_campaignid=8fe713e295420b2a2555fe4c14890290&aa_adgroupid=9833274c618c58f76a966641e9ac5a93_PBSEP_!!!affid!!!_118045_&aa_creativeid=4578R2iBfaTfKKrYzQEm4IuhcSmRGpjnVFZLXEm4OF2LeMs_c"}],"product":{"brand":"Sportsroyals UK","evidence_url":"https://www.mainbuyer.com/evidence/products/sportsroyals-twist-stair-stepper-machine-for-home-gym-cardio-exercise-b0c9ml5ygk/prices","gtin":null,"id":10890,"model_number":null,"name":"SPORTSROYALS Twist Stair Stepper Machine for Home Gym Cardio Exercise","product_url":"https://www.mainbuyer.com/product/sportsroyals-twist-stair-stepper-machine-for-home-gym-cardio-exercise-b0c9ml5ygk","urn":"MB-AWIN-GB-B0C9ML5YGK"},"summary":{"currency_code":"GBP","currency_symbol":"\u00a3","has_history":true,"historical_high":"49.99","historical_low":"49.99","last_observed_at":"2026-09-17T12:29:14+00:00","low_30d":"49.99","low_90d":"49.99","median_price":"49.99","observation_count":1,"priced_observation_count":1,"retailer_count":1,"span_days":0,"tracked_since":"2026-09-17T12:29:14+00:00"}}